no optimizations are in place, I don't have do not disturb on, don't have deep sleeping apps, or any battery optimization. usually when I get a text or whatever it is the screen would light up for a few seconds. now it doesn't. I get a notification I hear it vibrate. but the screen doesn't light up. I have to press the screen to see the notification. I usually like it when it lights up to see if it's important and need to reply too quickly.